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If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of...
If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of...
If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of solution in a coffee-cup calorimeter, the temperature of the resulting solution increases from 21.3°C to 35.7 °C. Calculate the enthalpy change for the reaction per mole of Mgo. Assume that the specific heat capacity of the solution is 4.18 J/g.K, and the density of the solution is 1.00 g/mL. A 0.704 g of a pure acid, HA, is dissolved in water and an acid-base...
Question 5 5 pts A 77.0-mL sample of a 0.203 M potassium sulfate solution is mixed...
Question 5 5 pts A 77.0-mL sample of a 0.203 M potassium sulfate solution is mixed with 55.0 mL of a 0.226 M lead(II) nitrate solution and this reaction occurs: K2SO4(aq) + Pb(NO3)2 (aq) - 2 KNO3(aq) + PbSO4(s) The solid PbSO4 is collected, dried, and found to have a mass of 2.62 g. Determine the percent yield. 1 mole PbSO4 = 303.26g 91.1% 120% 69.5% 80.1% Question 29 5pi If 1.85 g MgO is combined with enough 1.00 M...
U Question 30 5 pts If 4.8 g of sulfur react with an excess amount of...
U Question 30 5 pts If 4.8 g of sulfur react with an excess amount of fluorine according to the equation, what mass of the product is formed when the reaction is complete? 1 mole SF6 - 146.05 g S + 3F2-SF o 228 O 9.0 g 328 O 158 D Question 29 5 pts If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of solution in a coffee-cup calorimeter, the temperature of the...
Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO2(g) Na2CO3(s) + H2O(1) If...
Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO2(g) Na2CO3(s) + H2O(1) If 3.70 mol NaOH and 2.00 mol CO2 are allowed to react, how many moles of the excess reactant remains? 0.15 mol CO2 O 0.30 mol NaOH O 1.70 NaOH 1.00 mol CO2 How much energy is required to change the temperature of 1.50 L of water from 25.0 °C to 100.0 °C? The specific heat capacity of water is 4.184 J/g.°C; density H2O =...
Select the equation or relationship that can be used to determine the change in internal energy...
Select the equation or relationship that can be used to determine the change in internal energy of the surroundings. Predict the identity of the precipitate that forms when aqueous solutions of BaBr2 and KNO3 are mixed. Group of answer choices there is no obvious reaction between the two reagents Ba(NO3)2 KBr BaSO4 Which species in the reaction below undergoes reduction? Fe2+(aq) + Mg(s) → Fe(s) + Mg2+ (aq) If 1.85 g MgO is combined with enough 1.00 M HCl...
When 0.650 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution...
When 0.650 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, lowering the temperature of the solution from 29.0°C to 23.0°C. Find AHxn for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g °C and the density is 1.00 g/mL.) O -212 kJ 0 -3.86 kJ -1.38 kJ O 3.86 kJ 212 kJ Submit Request Answer
In a coffee cup calorimeter, 100.0 mL of 1.00 M NaOH and 200.0 mL of 0.80...
In a coffee cup calorimeter, 100.0 mL of 1.00 M NaOH and 200.0 mL of 0.80 M HCl are mixed at 25.0oC. After the reaction, the temperature is 29.5 oC. Assuming all solutions have a density of 1.00 g/cm3 and a specific heat capacity of 4.18 J/oC g, what is the enthalpy change (kJ) for the balanced reaction? HCl(aq) + NaOH(aq) => NaCl(aq) + H2O(l)
When 0.630 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution...
When 0.630 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, raising the temperature of the solution from 23.6 ∘C to 28.5 ∘C. Find ΔHrxn for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g∘C and the density is 1.00 g/mL.) Express your answer using three significant figures.
5 of 25 ( Constants | Periodic Table Part A When 0.645 g Mn is combined with enough hydrochlorie acid to make 100.0...
5 of 25 ( Constants | Periodic Table Part A When 0.645 g Mn is combined with enough hydrochlorie acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, raising the temperature of the solution from 23.11 °C to 28.6 °C Find AlH for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g "C and the density is 1.00 g/mL O -198 kJ O 3.56 kJ O-120...
1. A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample...
1. A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HC1 in a coffee cup calorimeter. If both solutions were initially at 35.00°C and the temperature of the resulting solution was recorded as 37.00°C, determine the AH®rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HC1. Use 1.00 g/mL as the density of the solution and Cs, soin = 4.18 J/g • °C as the specific...
If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of solution in a coffee-cup calorimeter, the temperature of the resulting solution increases from 21.3°C to 35.7 °C. Calculate the enthalpy change for the reaction per mole of Mgo. Assume that the specific heat capacity of the solution is 4.18 J/g.K, and the density of the solution is 1.00 g/mL. A 0.704 g of a pure acid, HA, is dissolved in water and an acid-base...
Question 5 5 pts A 77.0-mL sample of a 0.203 M potassium sulfate solution is mixed with 55.0 mL of a 0.226 M lead(II) nitrate solution and this reaction occurs: K2SO4(aq) + Pb(NO3)2 (aq) - 2 KNO3(aq) + PbSO4(s) The solid PbSO4 is collected, dried, and found to have a mass of 2.62 g. Determine the percent yield. 1 mole PbSO4 = 303.26g 91.1% 120% 69.5% 80.1% Question 29 5pi If 1.85 g MgO is combined with enough 1.00 M...
U Question 30 5 pts If 4.8 g of sulfur react with an excess amount of fluorine according to the equation, what mass of the product is formed when the reaction is complete? 1 mole SF6 - 146.05 g S + 3F2-SF o 228 O 9.0 g 328 O 158 D Question 29 5 pts If 1.85 g MgO is combined with enough 1.00 M HCl to make 100.0 mL of solution in a coffee-cup calorimeter, the temperature of the...
Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO2(g) Na2CO3(s) + H2O(1) If 3.70 mol NaOH and 2.00 mol CO2 are allowed to react, how many moles of the excess reactant remains? 0.15 mol CO2 O 0.30 mol NaOH O 1.70 NaOH 1.00 mol CO2 How much energy is required to change the temperature of 1.50 L of water from 25.0 °C to 100.0 °C? The specific heat capacity of water is 4.184 J/g.°C; density H2O =...
When 0.650 g Mn is combined with enough hydrochloric acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, lowering the temperature of the solution from 29.0°C to 23.0°C. Find AHxn for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g °C and the density is 1.00 g/mL.) O -212 kJ 0 -3.86 kJ -1.38 kJ O 3.86 kJ 212 kJ Submit Request Answer
5 of 25 ( Constants | Periodic Table Part A When 0.645 g Mn is combined with enough hydrochlorie acid to make 100.0 mL of solution in a coffee-cup calorimeter, all of the Mn reacts, raising the temperature of the solution from 23.11 °C to 28.6 °C Find AlH for the reaction as written. (Assume that the specific heat capacity of the solution is 4.18 J/g "C and the density is 1.00 g/mL O -198 kJ O 3.56 kJ O-120...
1. A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HC1 in a coffee cup calorimeter. If both solutions were initially at 35.00°C and the temperature of the resulting solution was recorded as 37.00°C, determine the AH®rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HC1. Use 1.00 g/mL as the density of the solution and Cs, soin = 4.18 J/g • °C as the specific...
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